Impact Water Quality Monitoring Results at SR4(N) - Mid-Ebb Tide Impact Water Quality Monitoring Results at SR4(N) - Mid-Flood Tide
Date Weather Sea Sampling Water  Sampling Temperature (oC) pH Salinity (ppt) DO Saturation (%) Dissolved Oxygen (mg/L) Turbidity(NTU) Suspended Solids (mg/L) Date Weather Sea Sampling Water  Sampling Temperature (oC) pH Salinity (ppt) DO Saturation (%) Dissolved Oxygen (mg/L) Turbidity(NTU) Suspended Solids (mg/L)
   Condition  Condition** Time Depth (m) Depth (m) Value Average Value Average Value Average Value Average Value Average DA* Value Average DA* Value Average DA*    Condition  Condition** Time Depth (m) Depth (m) Value Average Value Average Value Average Value Average Value Average DA* Value Average DA* Value Average DA*
2-May-12 Cloudy Moderate 10:23 4 Surface 1 26.8 26.6 8.2 8.1 13.9 14.1 100.7 99.8 7.5 7.4 7.4 2.4 2.4 2.6 2.8 2.8 2.8 2-May-12 Fine Moderate 15:20 4 Surface 1 27.2 27.3 8.3 8.3 13.3 13.5 104.9 107.0 7.7 7.9 7.9 2.3 2.3 2.5 2.7 3.0 2.6
      26.3 8.1 14.2 98.9 7.4 2.4 2.8       27.4 8.2 13.6 109.0 8.0 2.2 3.2
      Middle - - - - - - - - - - - - - - -       Middle - - - - - - - - - - - - - - -
      - - - - - - -       - - - - - - -
      Bottom 3 26.6 26.5 8.1 8.1 15.7 15.7 99.9 99.2 7.4 7.3 7.3 2.6 2.7 3.1 2.8       Bottom 3 27.3 27.3 8.2 8.3 13.6 13.6 110.7 109.2 8.1 8.0 8.0 2.5 2.6 2.0 2.1
        26.4 8.1 15.8 98.5 7.3 2.7 2.4         27.3 8.3 13.5 107.6 7.9 2.6 2.2
4-May-12 Sunny Moderate 11:43 3 Surface 1 27.7 27.7 8.2 8.2 13.8 13.8 104.3 104.7 7.6 7.6 7.6 2.7 2.6 3.1 2.1 2.3 2.3 4-May-12 Cloudy Moderate 17:46 3 Surface 1 27.0 27.0 8.3 8.3 16.3 16.3 108.5 108.2 7.9 7.9 7.9 5.2 5.1 5.4 5.4 5.7 6.4
      27.7 8.2 13.8 105.1 7.7 2.5 2.4       27.0 8.3 16.3 107.8 7.8 5.0 5.9
      Middle - - - - - - - - - - - - - - -       Middle - - - - - - - - - - - - - - -
      - - - - - - -       - - - - - - -
      Bottom 2 27.2 27.2 8.2 8.2 15.2 15.2 102.4 102.8 7.5 7.5 7.5 3.6 3.6 2.3 2.3       Bottom 2 27.0 27.0 8.3 8.3 16.4 16.4 107.1 107.5 7.8 7.8 7.8 5.7 5.6 7.4 7.0
        27.2 8.2 15.2 103.1 7.5 3.5 2.3         27.0 8.3 16.4 107.9 7.9 5.5 6.5
7-May-12 Sunny Moderate 13:25 4 Surface 1 26.5 26.5 8.2 8.2 18.0 18.0 99.1 98.9 7.2 7.2 7.2 1.5 1.5 2.1 5.1 4.3 3.9 7-May-12 Sunny Moderate 07:37 5 Surface 1 26.2 26.2 8.1 8.1 17.6 17.6 84.3 84.0 6.2 6.2 6.2 3.9 4.0 3.8 5.7 4.9 5.9
      26.5 8.2 18.0 98.6 7.2 1.4 3.5       26.2 8.1 17.6 83.7 6.2 4.0 4.1
      Middle - - - - - - - - - - - - - - -       Middle - - - - - - - - - - - - - - -
      - - - - - - -       - - - - - - -
      Bottom 3 26.5 26.5 8.2 8.2 18.2 18.2 98.1 98.0 7.1 7.1 7.1 2.4 2.6 3.6 3.4       Bottom 4 26.2 26.2 8.1 8.1 18.1 18.1 85.2 85.3 6.2 6.2 6.2 3.4 3.5 6.2 6.9
        26.5 8.2 18.3 97.8 7.1 2.7 3.2         26.2 8.1 18.0 85.4 6.2 3.5 7.5
9-May-12 Sunny Moderate 14:45 5 Surface 1 28.3 28.2 8.3 8.3 13.8 13.8 113.3 113.8 8.2 8.2 8.2 1.5 1.5 1.8 2.7 3.2 3.6 9-May-12 Sunny Moderate 08:56 4 Surface 1 27.3 27.3 8.0 8.0 14.1 14.1 83.3 85.4 6.1 6.3 6.3 1.7 1.8 1.6 3.2 3.4 4.1
      28.2 8.3 13.9 114.2 8.3 1.4 3.6       27.3 8.0 14.1 87.4 6.4 1.9 3.5
      Middle - - - - - - - - - - - - - - -       Middle - - - - - - - - - - - - - - -
      - - - - - - -       - - - - - - -
      Bottom 4 27.8 27.6 8.3 8.2 15.7 16.1 113.2 111.6 8.2 8.0 8.0 2.0 2.0 3.2 3.9       Bottom 3 27.0 27.0 8.0 8.0 15.8 15.5 82.6 85.2 6.0 6.2 6.2 1.3 1.4 4.1 4.8
      27.4 8.2 16.5 110.0 7.9 1.9 4.5         27.1 8.0 15.2 87.7 6.4 1.5 5.5
11-May-12 Sunny Moderate 15:49 4 Surface 1 27.5 27.5 8.3 8.3 18.7 18.6 106.1 108.2 7.6 7.7 7.7 3.4 3.3 4.0 2.5 2.5 3.6 11-May-12 Cloudy Moderate 10:39 4 Surface 1 27.7 27.7 8.3 8.3 16.7 16.7 109.3 109.3 7.8 7.8 7.8 2.1 2.2 2.7 <0.5 1.2 1.2
      27.6 8.3 18.5 110.2 7.8 3.2 2.5       27.8 8.3 16.6 109.3 7.8 2.2 1.8
      Middle - - - - - - - - - - - - - - -       Middle - - - - - - - - - - - - - - -
      - - - - - - -       - - - - - - -
      Bottom 3 26.7 26.7 8.2 8.2 21.4 21.4 98.1 96.7 7.0 6.9 6.9 4.5 4.6 3.9 4.7       Bottom 3 27.4 27.4 8.2 8.2 17.9 17.7 102.4 102.7 7.3 7.4 7.4 3.2 3.1 0.8 1.2
        26.7 8.2 21.4 95.3 6.8 4.7 5.4         27.5 8.2 17.6 103.0 7.4 2.9 1.6
14-May-12 Sunny Moderate 09:57 4 Surface 1 27.7 27.7 8.5 8.5 15.3 15.2 116.4 116.3 8.4 8.4 8.4 2.7 2.6 2.9 3.2 3.1 3.2 14-May-12 Sunny Moderate 13:50 4 Surface 1 27.6 27.6 8.5 8.5 18.9 18.9 120.7 122.2 8.6 8.7 8.7 2.1 2.1 2.3 5.5 4.8 4.2
      27.7 8.5 15.1 116.1 8.4 2.5 3.0       27.6 8.5 18.9 123.6 8.8 2.1 4.0
      Middle - - - - - - - - - - - - - - -       Middle - - - - - - - - - - - - - - -
      - - - - - - -       - - - - - - -
      Bottom 3 26.9 27.2 8.2 8.3 21.1 21.3 99.8 100.0 7.1 7.1 7.1 3.3 3.2 3.5 3.3       Bottom 3 27.1 27.0 8.4 8.4 19.9 20.3 111.3 108.6 7.9 7.7 7.7 2.5 2.4 3.8 3.5
      27.5 8.4 21.6 100.2 7.1 3.0 3.1         26.9 8.3 20.7 105.9 7.5 2.3 3.1
16-May-12 Rainy Moderate 11:33 4 Surface 1 27.9 28.0 8.5 8.5 16.9 16.8 122.8 123.0 8.8 8.8 8.8 1.8 1.9 2.4 2.8 2.8 2.7 16-May-12 Cloudy Moderate 15:41 4 Surface 1 27.6 27.6 8.4 8.4 19.6 19.7 115.9 114.3 8.2 8.1 8.1 2.5 2.7 3.2 2.9 3.3 4.2
      28.0 8.5 16.7 123.2 8.8 2.0 2.8       27.5 8.4 19.7 112.7 8.0 2.8 3.6
      Middle - - - - - - - - - - - - - - -       Middle - - - - - - - - - - - - - - -
      - - - - - - -       - - - - - - -
      Bottom 3 27.3 27.4 8.3 8.3 20.1 19.6 102.8 103.4 7.3 7.3 7.3 2.8 2.9 2.7 2.5       Bottom 3 27.4 27.4 8.4 8.4 20.5 20.3 106.4 108.7 7.5 7.7 7.7 3.8 3.6 5.5 5.1
        27.5 8.3 19.1 104.0 7.4 2.9 2.2       27.5 8.4 20.1 110.9 7.8 3.4 4.7
18-May-12 # - - - - Surface - - - - - - - - - - - - - - - - - - 18-May-12 Rainy Moderate 17:24 3 Surface 1 27.0 27.0 8.3 8.3 20.8 21.0 95.2 90.6 6.8 6.4 6.4 3.5 3.5 3.8 3.8 3.7 3.8
      - - - - - - -       27.0 8.3 21.1 86.0 6.1 3.4 3.5
      Middle - - - - - - - - - - - - - - -       Middle - - - - - - - - - - - - - - -
      - - - - - - -       - - - - - - -
      Bottom - - - - - - - - - - - - - - - -       Bottom 2 27.0 27.0 8.3 8.3 21.0 21.1 85.6 86.3 6.1 6.1 6.1 4.1 4.1 3.7 3.9
        - - - - - - -         27.0 8.3 21.2 86.9 6.2 4.1 4.1
21-May-12 Sunny Moderate 13:20 4 Surface 1 27.2 27.1 8.2 8.2 20.7 21.1 73.5 73.1 5.2 5.2 5.2 6.5 6.6 7.5 7.2 8.1 7.6 21-May-12 Sunny Moderate 19:35 4 Surface 1 27.0 27.0 8.3 8.3 21.1 21.2 95.7 95.7 6.8 6.8 6.8 2.1 2.1 2.3 3.7 4.0 3.4
      27.1 8.1 21.4 72.7 5.1 6.7 8.9       27.1 8.3 21.4 95.7 6.8 2.1 4.3
      Middle - - - - - - - - - - - - - - -       Middle - - - - - - - - - - - - - - -
      - - - - - - -       - - - - - - -
      Bottom 3 26.7 26.6 8.1 8.1 24.1 24.2 71.5 71.7 5.0 5.0 5.0 8.5 8.4 7.3 7.0       Bottom 3 27.1 27.1 8.3 8.3 22.2 22.2 96.1 95.6 6.8 6.7 6.7 2.6 2.5 2.4 2.7
        26.5 8.1 24.3 71.8 5.0 8.3 6.7         27.1 8.2 22.2 95.0 6.7 2.4 3.0
23-May-12 Sunny Rough 13:31 4 Surface 1 26.7 26.7 8.2 8.2 21.7 21.7 90.9 92.2 6.4 6.5 6.5 5.6 5.5 5.7 9.1 8.7 8.3 23-May-12 Fine Moderate 07:35 4 Surface 1 26.5 26.5 8.2 8.2 19.7 19.8 89.3 90.0 6.4 6.5 6.5 2.0 2.0 2.3 2.6 3.3 3.5
      26.7 8.2 21.7 93.5 6.6 5.4 8.2       26.5 8.2 19.9 90.7 6.5 2.0 3.9
      Middle - - - - - - - - - - - - - - -       Middle - - - - - - - - - - - - - - -
      - - - - - - -       - - - - - - -
      Bottom 3 26.7 26.6 8.2 8.2 21.8 22.1 85.5 86.2 6.1 6.1 6.1 5.9 5.8 8.5 7.8       Bottom 3 26.5 26.5 8.2 8.2 19.8 20.0 88.8 89.0 6.4 6.4 6.4 2.5 2.6 3.2 3.6
      26.5 8.2 22.4 86.9 6.2 5.6 7.0         26.6 8.2 20.2 89.1 6.4 2.6 3.9
25-May-12 Sunny Moderate 14:41 4 Surface 1 27.8 27.7 8.2 8.2 20.8 20.9 96.4 96.2 6.8 6.7 6.7 2.4 2.5 2.3 2.4 2.6 3.8 25-May-12 Fine Moderate 08:46 4 Surface 1 27.3 27.3 8.1 8.1 19.2 19.9 92.8 91.8 6.6 6.5 6.5 1.8 1.8 2.2 2.7 2.8 2.5
      27.7 8.2 21.0 96.0 6.7 2.5 2.7       27.2 8.2 20.7 90.7 6.4 1.7 2.8
      Middle - - - - - - - - - - - - - - -       Middle - - - - - - - - - - - - - - -
      - - - - - - -       - - - - - - -
      Bottom 3 27.4 27.4 8.2 8.2 22.0 21.9 93.3 93.9 6.5 6.6 6.6 2.2 2.1 4.2 5.0       Bottom 3 27.2 27.2 8.2 8.2 21.4 21.3 84.8 85.7 6.0 6.0 6.0 2.7 2.6 2.3 2.2
        27.4 8.2 21.8 94.4 6.6 2.0 5.8         27.2 8.1 21.2 86.5 6.1 2.4 2.1
28-May-12 Fine Moderate 17:13 3 Surface 1 27.8 27.8 8.3 8.3 23.2 23.2 116.1 114.1 8.0 7.9 7.9 1.5 1.5 1.8 2.8 3.2 3.0 28-May-12 Fine Moderate 11:12 3 Surface 1 27.7 27.6 8.2 8.2 22.2 22.4 97.2 97.3 6.8 6.8 6.8 1.2 1.2 1.5 2.6 3.2 2.9
      27.8 8.3 23.3 112.0 7.7 1.4 3.6       27.6 8.2 22.6 97.4 6.8 1.1 3.8
      Middle - - - - - - - - - - - - - - -       Middle - - - - - - - - - - - - - - -
      - - - - - - -       - - - - - - -
      Bottom 3 27.8 27.8 8.3 8.3 23.3 23.2 113.0 114.4 7.8 7.9 7.9 1.9 2.1 2.8 2.7       Bottom 3 27.6 27.6 8.2 8.2 22.7 22.6 95.5 96.0 6.6 6.7 6.7 1.6 1.7 2.6 2.6
      27.8 8.3 23.2 115.7 8.0 2.2 2.5         27.6 8.2 22.4 96.4 6.7 1.8 2.6
30-May-12 Sunny Calm 09:03 4 Surface 1 27.0 27.0 8.3 8.3 24.5 24.5 96.4 96.5 6.7 6.7 6.7 2.9 2.8 3.0 3.2 4.3 4.0 30-May-12 Sunny Calm 13:38 4 Surface 1 27.5 27.5 8.3 8.3 22.0 22.0 103.6 103.2 7.2 7.2 7.2 1.8 1.9 2.0 3.0 3.3 3.5
      27.0 8.3 24.5 96.5 6.7 2.7 5.4       27.5 8.3 22.0 102.8 7.2 2.0 3.5
      Middle - - - - - - - - - - - - - - -       Middle - - - - - - - - - - - - - - -
      - - - - - - -       - - - - - - -
      Bottom 3 27.0 27.0 8.3 8.3 25.3 25.3 97.1 97.1 6.7 6.7 6.7 3.1 3.1 3.8 3.6       Bottom 3 27.3 27.3 8.3 8.3 23.1 23.1 101.9 102.1 7.1 7.1 7.1 2.1 2.1 3.0 3.7
        27.0 8.3 25.3 97.1 6.7 3.0 3.3         27.3 8.3 23.0 102.2 7.1 2.0 4.3
Remarks: Remarks:
Bolded values means the measured values exceed the Action Level; Underlined bolded values means the measured values exceed the Limit Level. Bolded values means the measured values exceed the Action Level; Underlined bolded values means the measured values exceed the Limit Level.
#  - Amber Rainstorm and Thunderstorm warnings were issued by HKO from 08:55 to 10:45 and 01:30 to 14:00 on 18 May 2012 respectively, with the consideration of safety concern, water quality monitoring  at Mid-Ebb session was cancelled.
Remarks:   Remarks:  
*     DA: Depth-Averaged *     DA: Depth-Averaged
**   Calm: Small or no wave; Moderate: Between calm and rough; Rough: White capped or rougher **   Calm: Small or no wave; Moderate: Between calm and rough; Rough: White capped or rougher
***  Cancelled due to Thunderstorm Warning and safety concern. ***  Cancelled due to Thunderstorm Warning and safety concern.